21455135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4649}}^1$

素因数の和:4738

約数の個数: 16

約数和(自身を含む): 28123200

約数和(自身を除く): 6668065

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 4649, 23245, 60437, 302185, 330079, 1650395, 4291027, 21455135]

約数ペア:

[(1, 21455135), (5, 4291027), (13, 1650395), (65, 330079), (71, 302185), (355, 60437), (923, 23245), (4615, 4649)]